Review: MarsFire Sanyo 2600 - 18650

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old4570
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Review: MarsFire Sanyo 2600 - 18650

For review , the MarsFire Sanyo Battery ...

Supplied for review by Manafont.com  

Link to product page : http://www.manafont.com/product_info.php/sanyo-protected-18650-high-capacity-rechargeable-battery-1pcset-p-9322

 

What we have are Sanyo 2600 (18650) batteries with a protection circuit added and clear wrap used so we can see the cell used . It is regular practice to buy a cell , add a protection circuit and a attractive wrapper with your name on it , and in the last few years all sorts of names and claims have been added to such wrappers , offering prospective buyers what I like to call dumpster quality batteries (due to the incredibly bad cells used inside the wrappers - possibly out of a rubbish bin)

 So it is refreshing to see a change to this trend , clear plain wrapping so that we can see the cell used , and no outrageous capacity claims ... 

Manafonts product description :

 

 Sanyo - Protected 18650 High Capacity Rechargeable Battery

  • Sanyo brand you can trust
  • Rechargeable 18650 battery
  • High capacity
  • Protected


Now there is  a simple honest claim , from what does appear to be a very honest battery .

Lets move onto the battery Dimensions :

Battery 1 , 68.6mm Long , 18.4mm in Diameter

Battery 2, 68.5mm Long , 18.4mm in Diameter 


Testing: 

The first thing was to do a direct comparison against a unprotected Sanyo 2600 battery to see if the protection circuit hampers the excellent discharge capability of the Sanyo 2600 . 

To this end I used 3 XM-L flashlights , one being equiped with my insane Manafont supplied 3 mode XM-L P60 drop in , which is a real power hog ! 

2nd part of the testing is discharging the batteries for capacity , now I have do admit to stuffing up here , I forgot to check the Turnigy to make sure it was calibrated correctly , which it was not , so the results for the 1A test are on the low side as the charger terminated too early (Charger was reading battery voltage 3 tenths too low , so terminated at 3.3v rather than 3v) I really dont have time to re-run the 1A capacity test (apologies) . But all subsequent discharges have been set up correctly to compensate for the error in the Turnigy charger. Still have to do the 3A discharge , but will hopefully have this completed in a few hours ...   

 

Discharge results , as can be seen the MarsFire batteries have done extremely well , 5 amps and 5.3 amps with the manafont P60 drop in , and if memory serves , the unprotected Sanyo 2600 is the better of two Sanyo 2600's I own . And honestly , at this level , the variation simply comes down to individual cells . And in the lights which are regulated to 2.8A the performance is right on the money . A rose by any other name ! , in this case MarsFire .



http://budgetlightforum.com/node/1308?page=2#comment-82588  Sanyo 2600 Test from a while back !  [ resulted in 2471mAh ] , so looks like these are right on the money if not better than previous cells I got , hmmm .  Hopefully not too long before I have some 3A discharge results . 



Hmmm , interesting , I used a faster charger to charge cell 1 , and it returned a lower discharge result ...

Im going to have to repeat that , and charge the battery much slower ...  

But in any-ways : 

Look like genuine Sanyo cells , the batteries have performed well , and I personally do like the 18650 Sanyo batteries . 

Id like to thank Manafont for the opportunity to test  these batteries , and I hope the information is useful for any prospective buyers . 

 

OK a bit of an update :  I recharged cell 1 @ 300mAh last night and it returned 2151mAh @ 3A discharge , hmmm , a 51mAh improvement ..  

I might repeat that and see what happens ..

Did try an experiment a while back with charge rates , might continue on that path with this cell ...

UPDATE INFO:

OK been very busy testing these batteries , last but not least :

Overcharge and over discharge protection results ....

Overcharge seems to cut in real early , one battery @ 4.2v and the other 4.21v 

Testing overcharge ?  Simple , I have a charger that charges to 4.35v [ Samsung 30A ] , so by placing the battery in the bay that goes to 4.35 I can see where the overcharge protection cuts in , simple ... 

Over discharge , ok seems to cut in around 2.3v  , Sanyo are rated to 2.75v  , so perhaps a little generous ... 

 Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….

 

Edited by: sb56637 on 08/26/2014 - 17:46
BetweenRides
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Funny, Old - nowhere on the Manafont link do they provide the capacity. Looking forward to your completed test.

old4570
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No claims ...   no BS .. 

Still have to complete the 3A test ..  About to start right after I type this ...................................................

 Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….

 

old4570
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OK a bit of an update :  I recharged cell 1 @ 300mAh last night and it returned 2151mAh @ 3A discharge , hmmm , a 51mAh improvement ..  

I might repeat that and see what happens ..

Did try an experiment a while back with charge rates , might continue on that path with this cell ...

 Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….

 

old4570
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Just completed a 3rd 3A discharge on cell 1 and it returned 2150mAh on the money ...  

 Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….

 

old4570
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Joined: 09/06/2010 - 02:44
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Location: Land of Oz

UPDATE INFO:

OK been very busy testing these batteries , last but not least :

Overcharge and over discharge protection results ....

Overcharge seems to cut in real early , one battery @ 4.2v and the other 4.21v 

Testing overcharge ?  Simple , I have a charger that charges to 4.35v [ Samsung 30A ] , so by placing the battery in the bay that goes to 4.35 I can see where the overcharge protection cuts in , simple ... 

Over discharge , ok seems to cut in around 2.3v  , Sanyo are rated to 2.75v  , so perhaps a little generous ... 

 Always remember , the easiest thing in the world to do , is to expel hot air from your lungs and through some vocal chords ..
The resulting sound may , or may not be worth listening too ….

 

2100
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Wow….i missed this one. Sanyos 2600 are one of my fav for high current, ie over 3A draw, applications… good knee. (better than the Pannys once you factor in the price)

agedbriar
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This one has a raised plus nipple, unlike the straight unprotected Sanyo, right?

Langcjl
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I got a couple of these the other day. They were delivered at 3.78V. I charged one of them to 4.2V and discharged to 3.6V @ 1A. This test yielded 2568mAh. Construction looks really nice on these batteries. I don’t buy protected batteries much but when I need more I will buy some of these.

Piers said " ....but who wants enough light, when you have the option for far too much "